Cancer risk in a cohort of patients with systemic lupus erythematosus (SLE) in California

Arti Parikh-Patel, Richard H White, Mark Allen, Rosemary D Cress

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

Objective: We conducted a retrospective cohort study to examine cancer risk in a large cohort of systemic lupus erythematosus (SLE) patients in California. Methods: The cohort consisted of individuals with SLE derived from statewide patient discharge data during the period 1991-2002. SLE patients were followed using cancer registry data to examine patterns of cancer development. Standardized incidence ratios (SIRs) and 95% CI were calculated to compare the observed to expected numbers of cancers based on age-, race-, and sex-specific incidence rates in the California population. Results: The 30,478 SLE patients were observed for 157,969 person-years. A total of 1,273 cancers occurred within the observation interval. Overall cancer risk was significantly elevated (SIR = 1.14, 95% CI = 1.07-1.20). SLE patients had higher risks of vagina/vulva (SIR = 3.27, 95% CI = 2.41-4.31) and liver cancers (SIR = 2.70, 95% CI = 1.54-4.24). Elevated risks of lung, kidney, and thyroid cancers and several hematopoietic malignancies were also observed. Individuals had significantly lower risks of several screenable cancers, including breast, cervix, and prostate. Conclusions: These data suggest that risks of several cancer types are elevated among SLE patients. Detailed studies of endogenous and exogenous factors that drive these associations are needed.

Original languageEnglish (US)
Pages (from-to)887-894
Number of pages8
JournalCancer Causes and Control
Volume19
Issue number8
DOIs
StatePublished - Oct 2008

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Systemic Lupus Erythematosus
Neoplasms
Incidence
Vulva
Patient Discharge
Kidney Neoplasms
Vagina
Hematologic Neoplasms
Liver Neoplasms
Thyroid Neoplasms
Cervix Uteri
Registries
Prostate
Lung Neoplasms
Cohort Studies
Retrospective Studies
Observation
Breast Neoplasms
Population

Keywords

  • Autoimmune diseases
  • Cancer
  • Hematologic neoplasms
  • Malignancy
  • Systemic lupus erythematosus

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Cancer risk in a cohort of patients with systemic lupus erythematosus (SLE) in California. / Parikh-Patel, Arti; White, Richard H; Allen, Mark; Cress, Rosemary D.

In: Cancer Causes and Control, Vol. 19, No. 8, 10.2008, p. 887-894.

Research output: Contribution to journalArticle

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abstract = "Objective: We conducted a retrospective cohort study to examine cancer risk in a large cohort of systemic lupus erythematosus (SLE) patients in California. Methods: The cohort consisted of individuals with SLE derived from statewide patient discharge data during the period 1991-2002. SLE patients were followed using cancer registry data to examine patterns of cancer development. Standardized incidence ratios (SIRs) and 95{\%} CI were calculated to compare the observed to expected numbers of cancers based on age-, race-, and sex-specific incidence rates in the California population. Results: The 30,478 SLE patients were observed for 157,969 person-years. A total of 1,273 cancers occurred within the observation interval. Overall cancer risk was significantly elevated (SIR = 1.14, 95{\%} CI = 1.07-1.20). SLE patients had higher risks of vagina/vulva (SIR = 3.27, 95{\%} CI = 2.41-4.31) and liver cancers (SIR = 2.70, 95{\%} CI = 1.54-4.24). Elevated risks of lung, kidney, and thyroid cancers and several hematopoietic malignancies were also observed. Individuals had significantly lower risks of several screenable cancers, including breast, cervix, and prostate. Conclusions: These data suggest that risks of several cancer types are elevated among SLE patients. Detailed studies of endogenous and exogenous factors that drive these associations are needed.",
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